2003 2.8 JTD fuel filter connection

Discussion in 'Fiat' started by DocHoliday, Mar 5, 2015.

  1. DocHoliday

    DocHoliday Read Only Funster

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    My Hymer has the screw-on cartridge type filter, similar to an oil filter, but it has an electrical connection on the bottom. I've not seen any mention of that on the various threads about changing the filter, so I'm wondering what it does?

    I tried to unscrew the filter by hand but it won't budge. If it's a quick job I think I might just let a garage do it rather than go out and buy a filter wrench and get my knuckles chafed. I can't see a part number, so I guess I'll have to take pot luck whether the garage has it as I understand there are several different ones for this engine.
     
  2. SIFTA SAM

    SIFTA SAM Read Only Funster

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    It's the 'water in fuel' detector I think you will find.
     
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  3. DocHoliday

    DocHoliday Read Only Funster

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    Thanks. Would that show a warning light on the dashboard?
     
  4. SIFTA SAM

    SIFTA SAM Read Only Funster

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    If you turn your ignition key one position clockwise to the MAR position, the 'water in diesel' amber light will come on for a couple of seconds, then go out. (checking operation) This amber warning light is positioned at the bottom and extreme left of the Instrument Panel.
    The Fiat Owners Handbook states :- "The presence of water in diesel fuel can cause severe damage to the engine fuel feed system.
    Consequently, you should go to a Fiat Dealership as soon as the warning light comes on"
    .
    I have no idea whatsoever of the number of reported cases of this type of contamination problem in the UK.
     
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  5. Al-Di

    Al-Di Funster

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    mine has the same, but a lot of replacement filters do not have the correct size fitting to transfer it over, get a proper filter from fiat/good accessory shop, and disconnect the fitting 1st at the connector block before removing filter or you stand a chance of snapping a wire at the filter end(i did) and had to get a replacement.
     
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  6. SIFTA SAM

    SIFTA SAM Read Only Funster

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    The fuel filter I changed last year on my Hymer 2004 B544 was a UFI water eliminator fuel filter 46797378
     
  7. Tootles

    Tootles Funster

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    My 2.5 engine has the connector on top. But that is screw off, and they have been the cause of many problems in the past, due to seal shrinkage, leaks, and picking up air.
     
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  8. DocHoliday

    DocHoliday Read Only Funster

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    Yes, that's the part number given for mine by Eper.
     
  9. DocHoliday

    DocHoliday Read Only Funster

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    I did the job myself in the end, having bought a filter wrench. It's not too bad; I managed it without removing the whole air filter housing, just the lid and the air filter, but I do have long, thin arms!

    As Al-Di said, the tricky thing is to stop the (disconnected) sensor wire getting broken as you screw the fuel filter off and on. You can't see what's happening to the wire because of all the gubbins in the way.

    After the old filter is off and emptied, unscrew the sensor assembly from the bottom and fit it to the new filter.

    Watch out for the seal on the central spigot of the body - mine didn't come off with the old filter, and you certainly don't want two!

    I first tried to get a new filter from Feu Vert (I'm in Spain at the moment). They wanted 50 Euros for a Bosch one and were generally unhelpful - the only shop in Spain in nearly four months that has asked for my passport when paying with chip and pin! So I went next door to Norauto where the staff were much more helpful, cross checking part numbers several times to make sure I had the right one. They supplied me with their filter number 877 and I was relieved to find it is indeed the correct one, and pretty cheap at just 22 Euros.
     
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